GAUGE, Opt, FREQ
Gauges the problem domain for a magnetic edge-element
formulation.
OptType of gauging to be performed:
ON | — | Perform tree gauging of the edge values (default). |
OFF | — | Gauging is off. (You must specify custom gauging via APDL specifications.) |
STAT | — | Gauging status (returns the current |
FREQThe following options are valid when Opt = ON:
0 | — | Generate tree-gauging information once, at the first load step. Gauging data is retained for subsequent load steps. (This behavior is the default.) |
1 | — | Repeat gauging for each load step. Rewrites the gauging information at each load step to accommodate changing boundary conditions on the AZ degree of freedom (for example, adding or deleting AZ constraints via the D or CE commands). |
The GAUGE command controls the tree-gauging procedure required for electromagnetic analyses using an edge-based magnetic formulation (elements SOLID236 and SOLID237).
Gauging occurs at the solver level for each solution (SOLVE). It sets additional zero constraints on the edge-flux degrees of freedom AZ to produce a unique solution; the additional constraints are removed after solution.
Use the FREQ option to specify how
the command generates gauging information for multiple
load steps.
Access the gauging information via the _TGAUGE component of
gauged nodes. The program creates and uses this component internally
to remove and reapply the AZ constraints required by gauging. If FREQ = 0, the _TGAUGE component is created at the first
load step and is used to reapply the tree gauge constraints at subsequent
load steps. If FREQ = 1, the tree-gauging
information and the _TGAUGE component are generated at every load
step
If gauging is turned off (GAUGE,OFF), you must specify your own gauging at the APDL level.
This command is also valid in PREP7.